Home / 230,360.28-317,855.12-128,383.17

Finding the Fourth Proportional to 230,360.28, 317,855.12 and 128,383.17

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Solution

The fourth proportional to 230,360.28, 317,855.12 and 128,383.17 is: 177,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,360.28 : 317,855.12 = 128,383.17 : x
  2. Step 2: Convert to fraction form
    230,360.28/317,855.12 = 128,383.17/x
  3. Step 3: Cross multiply
    230,360.28x = 317,855.12 × 128,383.17
  4. Step 4: Simplify right side
    230,360.28x = 40,807,247,264.41
  5. Step 5: Solve for x
    x = 40,807,247,264.41/230,360.28
  6. Step 6: Final answer
    x = 177,145.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.